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Swift Trigger: 1033328

Presumed name: GRB 210218A

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BAT 03h 09m 09.84s, +35° 17′ 13.2″
position:(47.291, +35.287 ± 180″)
XRT No position available.
UVOT No position available.
Galactic NHI:1.13×100 cm-2
Galactic E(B-V):0.204 mag
Best RA:03h 09m 09.84s= 47.291 d
Best Dec:+35° 17′ 13.2″= +35.287 d
Gal Lat:-19.62
Gal Long:152.27
Sun angle:85.03°, -5.0 hr East of Sun

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.


No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.0′′47.2910035.28700GCN #29529GRB 210218A: Swift detection of a burstVizier logo
148.5′′47.3179235.32192GCN #29537GRB 210218A: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 3.33′ around BAT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).


RA*Dec*SIMBAD name Query

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
4.347.289635.2872NEDQuery vizier around this object
12.547.293635.2843B=21.7, R=19.6APM-NQuery vizier around this object
13.447.293335.2839NEDQuery vizier around this object
20.047.286235.2911NEDQuery vizier around this object
21.547.283735.2856NEDQuery vizier around this object
22.447.297535.2903NEDQuery vizier around this object
22.847.297535.2903NEDQuery vizier around this object
32.347.297635.2798B1=19.7, B2=19.8, I=18.1, R1=18.4, R2=18.6USNO-B1Query vizier around this object
32.347.297535.2797NEDQuery vizier around this object
33.747.291735.2778NEDQuery vizier around this object


There are 202 galaxies within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example


RA*Dec* CatalogueQuery
13.047.293635.2841B1=20.6, B2=20.7, R1=19.6, R2=19.8USNO-B1Query vizier around this object
22.647.297535.2904B1=18.7, B2=19.1, I=15.5, R1=16.7, R2=16.6USNO-B1Query vizier around this object
22.847.297635.2903h=14.1, j=14.7, k=13.92MASSQuery vizier around this object
33.247.282435.2810R1=19.6, R2=20.1USNO-B1Query vizier around this object
34.647.291835.2774B1=14.2, B2=14.5, I=12.6, R1=13.3, R2=13.6USNO-B1Query vizier around this object
34.847.291835.2773h=12.1, j=12.4, k=12.02MASSQuery vizier around this object
39.847.281835.2951I=17.9, R1=19.6, R2=19.9USNO-B1Query vizier around this object
40.347.281735.2952h=16.4, j=17.0, k=16.32MASSQuery vizier around this object
47.047.278235.2792B1=20.1, B2=20.6, R2=19.6USNO-B1Query vizier around this object
53.847.275135.2795h=14.9, j=15.7, k=14.82MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 132 stars within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example.